{"answers":{"affected":"1 open source package ship an affected version, including apache. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-53020 in the wild and no public exploit code.","fix":"Upgrade apache to 2.4.64 or later.","what":"CVE-2025-53020 is a high-severity denial of service vulnerability in Apache Http Server, published on 10 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-53020 and fix it if it is affected.\n\nWhat it is: CVE-2025-53020 is a high-severity denial of service vulnerability in Apache Http Server, published on 10 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-53020 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- apache (Bitnami): affected from 2.4.17; fixed in 2.4.64\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-53020/ (Markdown: https://insights.sbomify.com/CVE-2025-53020/index.md)","id":"CVE-2025-53020","markdown":"https://insights.sbomify.com/CVE-2025-53020/index.md","name":"CVE-2025-53020","record":{"aliases":["ALPINE-CVE-2025-53020","ALSA-2026:22528","ALSA-2026:22551","AZL-65094","AZL-65109","BELL-CVE-2025-53020","BIT-apache-2025-53020","CLSA-2026-1781175625","CLSA-2026-1783416695","DEBIAN-CVE-2025-53020","GHSA-c2vf-6g7v-8m6c","MINI-j7mr-r439-jp3q","RHSA-2026:22528","RHSA-2026:22551","RLSA-2026:22528","RLSA-2026:22551","UBUNTU-CVE-2025-53020"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache HTTP Server","requires_auth":"none","summary":"Attackers can cause a denial of service in Apache HTTP Server by triggering excessive memory consumption through HTTP/2 requests.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"http_server","vendor":"apache"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime"}],"description":"Late Release of Memory after Effective Lifetime vulnerability in Apache HTTP Server.\n\nThis issue affects Apache HTTP Server: from 2.4.17 up to 2.4.63.\n\nUsers are recommended to upgrade to version 2.4.64, which fixes the issue.","ecosystems":["AlmaLinux:10","AlmaLinux:9","Bitnami","Red Hat:enterprise_linux:10.2","Red Hat:enterprise_linux:9::appstream","Rocky Linux:10","Rocky Linux:9"],"exploits":{"exploitdb":0,"first_seen":"2026-01-12","github_poc":1,"max_poc_stars":2,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-01-12T08:14:29Z","kind":"github_poc","ref":"https://github.com/galbarnahum/CVE-2025-53020-PoC","stars":2,"title":"PoC for CVE-2025-53020 - HPACK bombing for Apache HTTPD."}],"tier":"poc_unverified"},"has_fix":true,"headline":"Apache HTTP Server: HTTP/2 DoS by Memory Increase","id":"CVE-2025-53020","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"apache:http_server","products":["apache:http_server"],"type":"denial_of_service","year":"2025"},"n_packages":11,"n_references":1,"next":{"headline":"Moodle Session Fixation allows unauthenticated users to hijack sessions via sesskey parameter","id":"CVE-2025-53021"},"packages":[{"ecosystem":"Bitnami","fixed":["2.4.64"],"introduced":["2.4.17"],"last_affected":[],"package":"apache","purl":"pkg:bitnami/apache","source":"BIT-apache-2025-53020"},{"ecosystem":"AlmaLinux:10","fixed":["2.0.29-4.el10_2"],"introduced":["0"],"last_affected":[],"package":"mod_http2","purl":"pkg:rpm/almalinux/mod_http2","source":"ALSA-2026:22528"},{"ecosystem":"AlmaLinux:9","fixed":["2.0.26-6.el9_8"],"introduced":["0"],"last_affected":[],"package":"mod_http2","purl":"pkg:rpm/almalinux/mod_http2","source":"ALSA-2026:22551"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:2.0.29-4.el10_2"],"introduced":["0"],"last_affected":[],"package":"mod_http2","purl":"pkg:rpm/redhat/mod_http2","source":"RHSA-2026:22528"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:2.0.29-4.el10_2"],"introduced":["0"],"last_affected":[],"package":"mod_http2-debuginfo","purl":"pkg:rpm/redhat/mod_http2-debuginfo","source":"RHSA-2026:22528"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:2.0.29-4.el10_2"],"introduced":["0"],"last_affected":[],"package":"mod_http2-debugsource","purl":"pkg:rpm/redhat/mod_http2-debugsource","source":"RHSA-2026:22528"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:2.0.26-6.el9_8"],"introduced":["0"],"last_affected":[],"package":"mod_http2","purl":"pkg:rpm/redhat/mod_http2","source":"RHSA-2026:22551"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:2.0.26-6.el9_8"],"introduced":["0"],"last_affected":[],"package":"mod_http2-debuginfo","purl":"pkg:rpm/redhat/mod_http2-debuginfo","source":"RHSA-2026:22551"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:2.0.26-6.el9_8"],"introduced":["0"],"last_affected":[],"package":"mod_http2-debugsource","purl":"pkg:rpm/redhat/mod_http2-debugsource","source":"RHSA-2026:22551"},{"ecosystem":"Rocky Linux:10","fixed":["0:2.0.29-4.el10_2"],"introduced":["0"],"last_affected":[],"package":"mod_http2","purl":"pkg:rpm/rocky-linux/mod_http2?distro=rocky-linux-10\u0026epoch=0","source":"RLSA-2026:22528"},{"ecosystem":"Rocky Linux:9","fixed":["0:2.0.26-6.el9_8"],"introduced":["0"],"last_affected":[],"package":"mod_http2","purl":"pkg:rpm/rocky-linux/mod_http2?distro=rocky-linux-9\u0026epoch=0","source":"RLSA-2026:22551"}],"prev":{"headline":"ImageMagick has Memory Leak in magick stream","id":"CVE-2025-53019"},"products":["Apache HTTP Server"],"published":"2025-07-10","related":[{"cvss_score":9.8,"headline":"Apache HTTP Server Path Traversal","id":"CVE-2021-42013","kev_date_added":"2021-11-03","published":"2021-10-07"},{"cvss_score":9.1,"headline":"Apache HTTP Server Improper Escaping of Output","id":"CVE-2024-38475","kev_date_added":"2025-05-01","published":"2024-07-01"},{"cvss_score":9,"headline":"Apache HTTP Server-Side Request Forgery (SSRF)","id":"CVE-2021-40438","kev_date_added":"2021-12-01","published":"2021-09-16"},{"cvss_score":7.8,"headline":"Apache HTTP Server Privilege Escalation","id":"CVE-2019-0211","kev_date_added":"2021-11-03","published":"2019-04-08"},{"cvss_score":7.5,"headline":"Apache HTTP Server Path Traversal","id":"CVE-2021-41773","kev_date_added":"2021-11-03","published":"2021-10-05"},{"cvss_score":10,"headline":"Use after free in n/a","id":"CVE-2010-0425","kev_date_added":null,"published":"2010-03-05"},{"cvss_score":10,"headline":"Auth bypass in n/a","id":"CVE-2005-2700","kev_date_added":null,"published":"2005-09-06"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["Apache Software Foundation"]},"summary":"Attackers can cause a denial of service in Apache HTTP Server by triggering excessive memory consumption through HTTP/2 requests.","url":"https://insights.sbomify.com/CVE-2025-53020/"}